Automatic weft insertion rate control system for air-jet loom and regulation method of control system

Abstract

The invention discloses an automatic weft insertion rate control system for an air-jet loom and a regulation method of the control system. The system comprises a yarn speed detection module, a main jet, an air flow regulation device and a logical processing module, wherein the yarn speed detection module and the main jet are fixedly mounted by a first groove screw and a second groove screw; the yarn speed detection module is connected with the logical processing module by a circuit; the logical processing module is connected with a loom master control board by a circuit; the loom master control board is connected with the air flow regulation device by a circuit; and the air flow regulation device is connected with the main jet by a pipeline. During a production course, the air-jet loom provided with the system can automatically control the air flow regulation device after different yarns are replaced, so that the yarns can reach the set weft insertion rate, the yarns can accurately pass through a fell within specified shedding time, a stoppage rate is reduced, the weaving efficiency is improved, and the weaving quality is improved.

Description

[0001] Wu Zhenyu, Pan Zhen, Ying Zhiping, Hu Xudong technical field [0002] The invention relates to an automatic control system for weft insertion speed of an air-jet loom and an adjustment method thereof. Background technique [0003] An air-jet loom is a loom that uses airflow for yarn running traction. The high-speed jet formed by the nozzle can pull the yarn to quickly complete the acceleration and deceleration movement required in the weaving process. In the long-term development process, in order to better complete the weaving process, air-jet looms have successively undergone functional subdivisions, such as the emergence of acceleration nozzles and maintenance nozzles, acceleration channels composed of shaped reeds, and so on. [0004] The air-jet loom is a complex production equipment. Many moving components are ultimately used to ensure the correct interweaving of weft and warp yarns. In a certain period of time, a certain opening space will be formed for the w...

AI Technical Summary

Problems solved by technology

However, the main nozzle of the traditional air-jet loom can only adjust the airflow velocity, and it is found through research that the yarn flying velocity is not only directly affected by the airflow velocity, but also has a great influence on the characteristics of the yarn itself, such as yarn diameter and hairiness , wrap tightness

Therefore, in many production occasions, under the same air supply conditions, due to the change of weaving yarn types or yarn batches, there is a large change in yarn flight speed, which leads to changes in yarn flight time, which in turn affects weaving effect

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